6.4
Medium
CVE-2025-57851 A container privilege escalation flaw was found in certain Multicluster Engine for Kubernetes images
Description
A container privilege escalation flaw was found in certain Multicluster Engine for Kubernetes images. This issue stems from the /etc/passwd file being created with group-writable permissions during build time. In certain conditions, an attacker who can execute commands within an affected container, even as a non-root user, can leverage their membership in the root group to modify the /etc/passwd file. This could allow the attacker to add a new user with any arbitrary UID, including UID 0, leading to full root privileges within the container.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Multicluster Engine for Kubernetes | Versions not published |
References
- access.redhat.com access.redhat.com
- RHBZ#2391104 bugzilla.redhat.com
Timeline
- Published
- Last modified
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